//Create a boolean variable to check for a valid Internet Explorer instance.
var xmlhttp = false;

//Check if we are using IE.
try {
    //If the Javascript version is greater than 5.
    xmlhttp = new ActiveXObject("Msxml2.XMLHTTP");
} catch (e) {
    //If not, then use the older active x object.
    try {
        //If we are using MS.
        xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
    } catch (E) {
        //Else we must be using a non-IE browser.
        xmlhttp = false;
    }
}

//If we are using a non-IE browser, create a javascript instance of the object.
if (!xmlhttp && typeof XMLHttpRequest != 'undefined') {
    xmlhttp = new XMLHttpRequest();
}


/*
 var xmlhttp;

 //If, the activexobject is available, we must be using IE.
 if (window.ActiveXObject){
 xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
 } else {
 //Else, we can use the native Javascript handler.
 xmlhttp = new XMLHttpRequest();
 }
 */

function makerequest(serverPage, objID) {

    var obj = document.getElementById(objID);
    xmlhttp.open("GET", serverPage);
    xmlhttp.onreadystatechange = function () {
        if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
            obj.innerHTML = xmlhttp.responseText;
        }
    }
    xmlhttp.send(null);
}